Fixed Issue with whitespaces in path.

[Corwynt]

Whitespaces in Path lead to an error in ´prompt_dir()`. To fix this, the IFS variable which defines the split-chars for assignments is temporarily set to an empty string.

[Zankuroh]

It's not a full fix (it doesn't show error msg but the path is not complete) but thank you anyway

[Corwynt]

@Nuntis can you tell me which path doesn't work for you?

[Zankuroh]

@Corwynt Wow, my bad, it's my fault, I didn't reload my shell u_u
It works perfectly !
Thank you :D

[pucicu]

Great! Thank you very much! Works well now.

[bhilburn]

Hey @Corwynt! Thanks so much for submitting this PR! The dir segment is pretty heavily used, so I do want to make sure we get this bugfix merged.

Currently, this PR is breaking unit tests, and it looks like it may be due to the use of local. Have a look:
https://travis-ci.org/bhilburn/powerlevel9k/builds/308097509

What version of ZSH did you test this with locally? I wonder if the behavior has changed.

[Corwynt]

@bhilburn The Tests seem to run now, without an error. I was missing some quotes around a variable assignment

[bhilburn]

@Corwynt - Thanks for the fix! Looks great.

Thanks again for putting this PR together, and welcome to P9k! =)